Wong spent eight years as Google's VP and deputy general counsel prior to joining Twitter. At Google, she earned the nickname "The Decider" because it was her job to deal with removal requests for search results and Youtube videos.

She was also Google's chief crusader against censorship. And this is a topic she cares deeply about on a personal level.

In 2011, after San Francisco transit authorities shut down the city's subway cell network during a protest, Wong wrote a post to Google+ warning that this was a slippery slope.

"Here's the thing about censorship: in this globally connected world, censorship is never local," Wong said in the post.